Bolt-clipper.



No. 745,905. PATENTED DEC. 1, 1908. I

- H. K. PORTER.

BOLT CLIPPER.

- APPLIOATION FILED FEB. 2, 1903.

H0 MODEL.

UNITED STATES Patented December 1, 1903.

HENRY K. PORTER, OF CHELSEA, MASSACHUSETTS.

BOLT-CLIPPER.

SPECIFICATION forming part of Letters Patent No. 745,905, dated December0 Application filed February 2, 1903. Serial No. 141,439. (No model.)

T0 aZZ whom, it rim/y concern:

Be it known that I, HENRY K. PORTER, a citizen of the United States,residing at Chelsea,

in the county of Suffolk and State of Massachusetts, have invented a newand useful Improvement in Bolt-Clippers, of which the following is aspecification.

My present invention relatesv to details of construction constitutingimprovements in the bolt-clippers for which I have heretofore beenallowed Letters Patent of the United States, and has for its object tomake a clipper more simple and conveniently adjustable and lessexpensive to make. I attain the object stated by the constructionillustrated in the accompanying drawings, in which Figure 1 is a sideelevation, partly in section, of the clipper embodying my saidimprovements, the outer ends of the handles being broken off toeconomize space in drawing. Fig. 2 is a plan of the upper side of theunder jaw and handle shown in Fig. 1. Fig. 3 is aplan of the front endof the same with the cutter removed. Fig. 4 is a plan of the under sideof the detachable cutter. Fig. 5 is a central section of the same andincluding a portion of the jaw on which it rests and the interposedadjusting-disk or circular shim. Fig. 6 is an edge view and plan of oneof the adjusting-disks or shims employed between the cutters and jaws;and Fig. 7 is a reduced central section taken, as on line 7 7, Fig. 1,through the parts which constitute the jointed connection of the twocutter-jaws.

Referring to the drawings, the jaws A and A are jointed to the handles Band B by knuckle-joints G and C of common construction, while thehandles are jointed together at D in the usual manner. Handle B isformed with a pocket E, cored in the casting thereof, and has aspring-cover E pivoted to the handle at E and having a catch E whichsprings into the end of the opening to the pocket in the handlewhen thepocket is closed, as shown. This pocket contains the adjustingdisks whenthey are not in use between the jaws and cutters. The jaws A and A areformed to interlock in a joint F and are firmly secured together by abolt F, having a head F on one end and a thread on the opposite end. JawA carries a detachable cutter G, and jaw Aa like cutter G. The cuttersare held to the faces of the jaws by bolts 11 and H, which are threadedon one end and have hexagonal heads on their opposite ends and arepassed through the jaws and threaded into the cutters, as clearly shownin Fig. 1. The faces of the jaws which serve as seats for the cuttersare each provided with three projecting pins or studs I, as shownclearly in Fig. 3, which are arranged in the face of the jaw equidistantfrom each other and from the center of the bolt-hole therein, and theunder faces of the cutters are each drilled in a concentric circlearound the bolt-hole therein and at a radial distance therefrom equal tothe distance from the center of the bolt-hole in the jaw to the centersof the pins in the same, with twelve holes J, extended partially throughthe cutters and adapted to fit on the pins in the jaws. By thisconstruction the cutters can be adjusted to cut in various positions andrelations to the jaws, being capable of adjustment by turning to theextent of one pin at a time, being one-twelfth of the circle of thirtydegrees around the central bolt. This is effected by retracting the boltuntil the cutter is released therefrom and then separating the cutterfrom the pins and turning it one or more holes, as desired, and placingit again on the pins and securing it firmly thereon by the screw-bolt,as before. One or more pins up to the number six may be employed as maybe deemed necessary to insure proper strength. The circular shims Kshown in Fig. 6 are perforated with holes corresponding to the pins inthe jaws and when used are placed over said pins and rest between thejaws and the cutters, as shown in Fig. 6, to raise the latter andcompensate for the wearing away of their cutting edges. Thiscompensating adjustment is effected to the extent required by theemployment of one or more of the shims in the manner stated, and thismethod of adjustment affords a uniformly level bearing for the cutter inwhatever position the latter maybe turned on the anvil or flat face ofthejaw, and the joint F, formed by interlocking the jaws, as shownclearly in Fig. 7, and securing them by bolt F, gives a firm support ofthe jaws against endwise play and consequent disturbance of therelations of the sharpened edges of the cutters and is more effective inthis respect and cheaper in construction than the jaw-teeth and strapsand bolts heretofore used by me in former patents, and theadjusting-disks in connection with the above joint and detachablecutters enable me to dispense in this cutter with the more expensive andless efiective handle adjustments also heretofore used by me.

I claim 1. In a bolt-clipper the combination of a pair of lever-jawsformed to interlock with each other, and arranged to be secured togetherby a centralVpivot-bolt; and having opposite flat faces with centralbolt-holes through the same, and provided with one or more projectingpins inserted therein; a pair of adjustable cutters provided withcentral bolt-holes and concentric circles of pin-holes around theircenters and partially through their bodies, adapting them to receivesaid pins while seated on the jaws; a pair of fastening-bolts extendedthrough the jaws and threaded into the cutters; and a pair of handlessuitably attached to the lever-jaws for operating the same; allsubstantially as specified.

2. In a bolt-clipper a pair of handles pivoted together; a pair oflever-j aws interlocked and pivotally bolted together, and jointed tothe handles; a pair of cutters adjustably attached to, and secured inplace upon the opposite fiat faces of the lever-j aws, by means of pinsprojecting from the jaws into the bodies of the cutters, and boltspassing centrally through the jaws and threaded into the cuttors; andone or more perforated adjustingdisks interposed between the cutters andjaws; all substantially as specified.

3. A bolt-clipper embodying the combination of a pair of lever-jaws asAand A interlocked with each other in a pivot-joint F; a pair ofdetachable and adjustable cutters G and G, seated on the jaws andsecured thereto by bolts H and H, with means for keeping the cuttersfrom turning on their seats; adjusting-disks K; a pair of handles B andB pivoted together as at D, and to the jawlevers as at C and O; and aninclosing pocket E, formed in one of the handles to contain theadjusting-disks when not in use; all substantially as specified.

v HENRY K. PORTER.

\Vitnesses:

EUGENE HUMPHREY, JOTT GRANT.

